Microbiological sampling may require moving locations for sampling due to what reason?

Microbiological sampling in water systems is crucial for ensuring the safety and quality of the water supply. As part of a comprehensive sampling plan, it is important to cover the entire system to identify potential contamination sources effectively. By moving sampling locations, operators ensure they are assessing water quality throughout different areas of the system, which may have varying characteristics or risks.

This approach helps in identifying localized problems, variations in water quality, or issues that may not be apparent if sampling remained confined to a single location. Thus, properly covering the entire system over time allows for a more thorough assessment of microbiological safety, ensuring that all potential contaminant sources are evaluated and managed appropriately.